Open English Wordnet
Verbs
(v)tie down, tie up, bind, trusssecure with or as if with ropes“tie down the prisoners”,
“tie up the old newspapers and bring them to the recycling shed” (v)tie upinvest so as to make unavailable for other purposes“All my money is tied up in long-term investments” (v)tie uprestrain from moving or operating normally“Traffic is tied up for miles around the bridge where the accident occurred” (v)moor, berth, tie upsecure in or as if in a berth or dock“tie up the boat”